Self-inking rubber stamp pad



Oct. 6, 1953 M mOTT 2,654,342

SELF-INKING RUBBER STAMP PAD Filed April 6, 1951 3'2 I. I P

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INVENTOR.

Patented Oct. 6 1953 UNITED I STATES PATENT OFFICE 2,654,342 vSELF-INKING RUBBER. STAMPPAD Harold G. Marriott, Ouaquaga, N. Y.

Application April 6, 1951, Serial No. 219,725

1 Claim. 1

The present invention relates to a self-inking rubber stamp pad and itconsists in the combinations, constructions and arrangements of partsherein described and claimed.

Generally there is provided a self-inking stamp pad comprising a body inwhich is mounted the pad construction and beneath the pad construction anormally closed valve. The body is provided with a raised portion inwhich is positioned a reservoir which is connected by a channel to thevalve structure. Depression of the stamp pad structure causes an openingof the valve temporarily to allow a flow of ink thereto so that thestamp pad is at all times kept moistened with ink.

It is accordingly an object of the invention to provide a stamp padhaving automatic means for reinking the same.

Another object of the invention is to provide a device of the characterset forth having a novel valve forming a part of the invention.

A further object of the invention is the provision of a device of thecharacter set forth which is simple in construction, inexpensive tomanufacture, easy to fill and yet effective and efficient in use.

Other and further objects of the invention will become apparent from areading of the following specification taken in conjunction with thedrawing, in which:

Figure 1 is a side elevational view of a cover forming a part of theinvention,

Figure 2 is a side elevationa1 view of a stamp pad forming a part of theinvention,

Figure 3 is a backing plate forming a part of the invention,

Figure 4 is a side elevatlonal view of a secondary inking pad forming apart of the invention, and

Figure 5 is a vertical sectional view of an embodiment of the inventionshown in assembled condition.

Referring more particularly to the drawing, there is shown therein aself-inking rubber stamp pad comprising. a body ll} having a recess IIin the top thereof and having a raised portion |'2 at one end thereof.Extending from the bottom and communicating with the recess H is apassageway l3 wherein is removably mounted a valve structure generallyindicated at I l.

The valve structure I4 comprises a cylindrical body I5 having acentrally disposed opening {6 in the upper portion thereof wherein isprovided a valve seat ll for a valve H! which is kept normally seated bymeans of a tension spring 2 l9. Also formed in the body I5 is a lateralopening which communicates with a passageway 2| extending upwardly inthe body ill to a vertical passageway 22 which, in turn, terminates atits upper end in a reservoir 23 in the raised portion l2. The passageway20 continues to the rear of thebody Ill, and is sealed by means of aremovable plug 24. The reservoir 23 is provided with a permanently fixedtop 25.

Positioned in the lower end of the recess II is a secondary ink pad 26which is provided with a plurality of ribs 21 upon its upper face andwith a plurality of vertical passages 28 which extend through such ribsand through the body proper:

of such pad 26.

Positioned atop the secondary pad 26 is a gridlike backing plate 29which is provided with a plurality of vertical slots 30 for thereception of the ribs 21 and, lying atop the plate 29, is an inking pad3|. A cover 32 is provided for covering the pad 3| when the same is notin use.

In operation, it will be apparent that the device may be filled with inkby removing the plug 24 and filling the same until a sufficient quantityof ink has been received in the passageway 2|, the passageway 22 and thereservoir 23 whereupon the plug 24 may be replaced and the device placedin its, normal condition as shown in Figure'5 of the drawing. The cover32 may then be removed and when a rubber stamp is, pressed against thepad 3| ink will be removed therefrom to the rubber stamp in conventionalmanner. However, as this action takes place the downward pressureof therubber stamp upon the pad 3| will impart a downward movement of thevalve I8 to thereby temporarily open the same and allow a flow of inkthroughrthe seat I! into the opening I5 and thence into the secondarypad 26. Since this pad 26 is ofan absorbent nature it will tend to holda goodly quantity of ink which will be delivered not only throughcontact between the ridges 21 and the pad 3| but directly to the pad 3|through the passageways 28 so that the pad 3| will be kept moistened atall times and automatically by the use thereof with the conventionalrubber stamps.

While but one form of the invention has been shown and described herein,it will be readily apparent to those skilled in the art that many minormodifications may be made without derecess having an inking pad disposedtherein adapted for applying ink to a rubber stamp, a portion at one endof said body rising above the other portion of the body, said raisedportion containing a reservoir with a removable top cap as a means forfilling same, means for automatically delivering ink to said padconsisting of passageways intercommunicating said reservoir and saidrecess, said passageways provided with a valvemfispringas anneansfor-normally holding said valve in aol'ose'd position, said valve beingmounted in the bottom portion of said body, and means operable foropening said valve by depressing said pad.

HAROLD G. MARRIOTT;

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date Davis May 2, 1882 Melven Sept. 28, 1897 Goff Feb. 22, 1910 Keeet a1 July 4, 1922 Horton Mar. 6, 1934 Gampbel1r g M85115, 1934 "=U1Iman227, 1940

